| Troisdorf to Kobarid | 431.01 mi (693.64 km) |
| Troisdorf to Kobilje | 508.04 mi (817.62 km) |
| Troisdorf to Kocevje | 502.96 mi (809.43 km) |
| Troisdorf to Komen | 459.19 mi (738.99 km) |
| Troisdorf to Komenda | 463.93 mi (746.62 km) |
| Troisdorf to Koper | 473.13 mi (761.42 km) |
| Troisdorf to Kostanjevica na Krki | 511.49 mi (823.16 km) |
| Troisdorf to Kostel | 511.51 mi (823.20 km) |
| Troisdorf to Kozje | 505.11 mi (812.89 km) |
| Troisdorf to Kranj | 456.93 mi (735.36 km) |
| Troisdorf to Kranjska Gora | 425.32 mi (684.48 km) |
| Troisdorf to Krizevci | 503.69 mi (810.61 km) |
| Troisdorf to Krsko | 508.44 mi (818.25 km) |
| Troisdorf to Kuzma | 490.04 mi (788.64 km) |
| Troisdorf to Lasko | 490.09 mi (788.72 km) |
